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DECOSTER Gustave scored 3.5/9 from 9 scored games (3 wins, 1 draw, 5 losses). The average listed opponent rating was 1494. The best listed performance rating was 1466.","links":{"profile":"https://www.p-gengler.com/chess/en/players/decoster-gustave-fra-196","seasonPage":"https://www.p-gengler.com/chess/en/players/decoster-gustave-fra-196/seasons/2025-2026","json":"https://www.p-gengler.com/chess/api/players/decoster-gustave-fra-196/seasons/2025-2026","search":"https://www.p-gengler.com/chess/api/search?q=DECOSTER%20Gustave"}}